Transfer screens to be 3D fabricated with determined pore placements
According to examples, a non-transitory computer-readable medium may have stored thereon instructions that may cause a processor to obtain a digital model of a transfer screen to be 3D fabricated. The processor may also determine placements of pores in the digital model, in which the transfer screen is to be mounted on a transfer mold via an attachment mechanism and to engage a surface of a wet part formed on a corresponding forming screen. The forming screen may have a first shape and the transfer screen may have a second shape that is complementary to the first shape, and the locations of the pores may be determined to allow liquid to be suctioned from the wet part when a vacuum pressure is applied to the transfer mold. The processor may further modify the digital model of the transfer screen to include the pores at the determined placements.
1 . A non-transitory computer-readable medium on which is stored machine-readable instructions that when executed by a processor, cause the processor to:
obtain a digital model of a transfer screen to be fabricated by a three-dimensional (3D) fabrication system;
determine placements of a plurality of pores in the digital model of the transfer screen, wherein the transfer screen is to be mounted on a transfer mold via an attachment mechanism and to engage a surface of a wet part formed on a corresponding forming screen, wherein the forming screen has a first shape and the transfer screen has a second shape that is complementary to the first shape, and wherein the placements of the plurality of pores are determined to allow liquid to be suctioned from the wet part when a vacuum pressure is applied to the transfer mold; and
modify the digital model of the transfer screen to include the plurality of pores at the determined placements.
2 . The non-transitory computer-readable medium of claim 1 , wherein the transfer screen includes multiple surfaces, and wherein the instructions are further to cause the processor to:
determine the placements of the plurality of pores to cause suction forces to substantially evenly be distributed across the multiple surfaces of the transfer screen when the vacuum pressure is applied to the transfer mold.
3 . The non-transitory computer-readable medium of claim 2 , wherein at least one of the multiple surfaces of the transfer screen extends substantially vertically.
4 . The non-transitory computer-readable medium of claim 1 , wherein the instructions are further to cause the processor to:
obtain a digital model of the transfer mold, the digital model of the transfer mold including a plurality of pores or a plurality of pores are to be added algorithmically to the digital model of the transfer mold, wherein the placements of the plurality of pores are determined with respect to liquid flow characteristics predicted to occur through the plurality of pores in the transfer mold.
5 . The non-transitory computer-readable medium of claim 1 , wherein the instructions are further to cause the processor to:
obtain a digital model of a forming screen to be fabricated by the 3D fabrication system, the digital model of the forming screen including a plurality of pores or a plurality of pores are to be added algorithmically to the digital model of the forming screen, wherein:
the forming screen is to be mounted on a forming mold via an attachment device and the wet part is to be formed on the forming screen from a slurry through application of a vacuum pressure through the forming mold; and
the transfer screen is to engage the wet part during removal of the wet part from the forming screen.
6 . The non-transitory computer-readable medium of claim 1 , wherein the instructions are further to cause the processor to:
modify the digital model of the transfer screen to add features to the digital model to impart a detail into the wet part during suctioning of the liquid from the wet part, wherein the detail comprises a logo, text, a predefined texture, a predefined pattern, or a combination thereof.
7 . The non-transitory computer-readable medium of claim 1 , wherein the instructions are further to cause the processor to:
send the modified digital model of the transfer screen to the 3D fabrication system, wherein the 3D fabrication system is to fabricate the transfer screen with the plurality of pores at the determined placements.